I need help with a formula for: with the variable that only when M is over 250 to divide M by 2 to display it in N & O, when M is over 500 to divide M by 3 to display it in N, O, & P, when M is over 750 to divide M by 4 to display it in N, O, P, & Q.

I am assuming that this formula(s) would need to be in columns N, O, P, & Q but I do not know how to do a formula with the variables above so that when M is between 250-500 it only displays in 2 columns, is between 500-750 it only displays in 3 columns, and is between 750+ it displays in 4 columns.

With what I know about formulas, the formulas that I currently in Row 4 in the spreadsheet attached, only has M is dividing in 4 if it over 250.